/* Mini Balloon Defense — thème rétro arcade, fond sombre + accents néon.
   Tout le style est ici (fichier externe, CSP script-src/style-src 'self'). */

:root {
  --bg: #05060a;
  --bg-panel: #0b0e16;
  --bg-cell: #0d1018;
  --line: #1c2233;
  --text: #e5e9f5;
  --text-dim: #7c86a0;
  --neon-cyan: #22d3ee;
  --neon-magenta: #f472b6;
  --neon-amber: #f59e0b;
  --neon-red: #ef4444;
  --neon-green: #34d399;
  --font: ui-monospace, "SFMono-Regular", "JetBrains Mono", Menlo, Consolas,
    "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior: none;
}

#app {
  display: flex;
  flex-direction: column;
  height: 100dvh;
  max-width: 520px;
  margin: 0 auto;
}

/* ------------------------------ HUD ------------------------------------- */
#hud {
  display: flex;
  gap: 6px;
  padding: 8px 10px;
  background: linear-gradient(180deg, #0a0d16, #06070c);
  border-bottom: 1px solid var(--line);
}

.hud-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 6px 2px;
  border-radius: 8px;
  background: var(--bg-panel);
  border: 1px solid var(--line);
}

.hud-label {
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.hud-value {
  font-size: 18px;
  font-weight: 700;
  color: var(--neon-cyan);
  font-variant-numeric: tabular-nums;
}

#hud-lives {
  color: var(--neon-red);
}

#hud-wave {
  color: var(--neon-amber);
}

#hud-highscore {
  color: var(--neon-magenta);
}

/* ------------------------------ Scène ---------------------------------- */
#stage {
  position: relative;
  flex: 1;
  min-height: 0;
  touch-action: none; /* évite le scroll/zoom pendant la pose de tours */
  background: radial-gradient(circle at 50% 30%, #0a0d16 0%, #05060a 70%);
}

#game {
  display: block;
  width: 100%;
  height: 100%;
  cursor: crosshair;
}

/* ------------------------------ Toast ----------------------------------- */
.toast {
  position: absolute;
  left: 50%;
  bottom: 12px;
  transform: translateX(-50%);
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(10, 13, 22, 0.92);
  border: 1px solid var(--neon-cyan);
  color: var(--text);
  font-size: 13px;
  white-space: nowrap;
  pointer-events: none;
  box-shadow: 0 0 14px rgba(34, 211, 238, 0.35);
}

.toast.is-hidden {
  display: none;
}

/* ------------------------------ Contrôles ------------------------------- */
#controls {
  padding: 8px 10px calc(8px + env(safe-area-inset-bottom));
  background: linear-gradient(0deg, #0a0d16, #06070c);
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

#tower-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}

.tower-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 8px 2px 6px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--bg-panel);
  color: var(--text);
  font-family: var(--font);
  font-size: 11px;
  cursor: pointer;
  position: relative;
}

.tower-btn::before {
  content: "";
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--tower-color, var(--neon-cyan));
  box-shadow: 0 0 8px var(--tower-color, var(--neon-cyan));
}

.tower-btn .cost {
  color: var(--neon-amber);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.tower-btn.is-selected {
  border-color: var(--tower-color, var(--neon-cyan));
  box-shadow: 0 0 10px var(--tower-color, var(--neon-cyan));
  background: rgba(34, 211, 238, 0.08);
}

.tower-btn.is-affordable-false {
  opacity: 0.45;
}

#actions {
  display: flex;
  gap: 8px;
}

#actions button {
  flex: 1;
  padding: 12px 8px;
  border-radius: 10px;
  border: 1px solid var(--line);
  font-family: var(--font);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.03em;
  cursor: pointer;
  color: var(--text);
  background: var(--bg-panel);
}

#actions button:disabled {
  opacity: 0.4;
  cursor: default;
}

#wave-btn {
  border-color: var(--neon-amber) !important;
  color: var(--neon-amber) !important;
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.25);
}

#wave-btn.is-running {
  background: rgba(245, 158, 11, 0.1);
}

#sell-btn.is-active {
  border-color: var(--neon-red) !important;
  color: var(--neon-red) !important;
  box-shadow: 0 0 12px rgba(239, 68, 68, 0.25);
}

/* ------------------------------ Overlays -------------------------------- */
.overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(5, 6, 10, 0.88);
  z-index: 10;
}

.overlay.is-hidden {
  display: none;
}

.panel {
  width: 100%;
  max-width: 360px;
  padding: 28px 24px;
  border-radius: 16px;
  background: linear-gradient(180deg, #0b0e16, #07080d);
  border: 1px solid var(--line);
  box-shadow: 0 0 40px rgba(34, 211, 238, 0.12);
  text-align: center;
}

.title {
  margin: 0 0 16px;
  font-size: 40px;
  line-height: 1.05;
  letter-spacing: 0.02em;
  background: linear-gradient(180deg, #ffffff, var(--neon-cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 30px rgba(34, 211, 238, 0.35);
}

.title.danger {
  background: linear-gradient(180deg, #ffffff, var(--neon-red));
  -webkit-background-clip: text;
  background-clip: text;
  text-shadow: 0 0 30px rgba(239, 68, 68, 0.35);
}

.title.win {
  background: linear-gradient(180deg, #ffffff, var(--neon-green));
  -webkit-background-clip: text;
  background-clip: text;
  text-shadow: 0 0 30px rgba(52, 211, 153, 0.35);
}

.tagline {
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.5;
  margin: 0 0 20px;
}

.mode-buttons {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}

.mode-buttons button,
.panel > button {
  padding: 14px;
  border-radius: 10px;
  border: 1px solid var(--neon-cyan);
  background: rgba(34, 211, 238, 0.08);
  color: var(--neon-cyan);
  font-family: var(--font);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.03em;
  cursor: pointer;
  width: 100%;
}

.mode-buttons button:hover,
.panel > button:hover {
  background: rgba(34, 211, 238, 0.18);
}

.mode-buttons #play-endless {
  border-color: var(--neon-magenta);
  background: rgba(244, 114, 182, 0.08);
  color: var(--neon-magenta);
}

.mode-buttons #play-endless:hover {
  background: rgba(244, 114, 182, 0.18);
}

.panel > button {
  margin-top: 16px;
  border-color: var(--neon-amber);
  color: var(--neon-amber);
  background: rgba(245, 158, 11, 0.08);
}

.panel > button:hover {
  background: rgba(245, 158, 11, 0.18);
}

.hint {
  color: var(--text-dim);
  font-size: 11px;
  line-height: 1.5;
  margin: 14px 0 0;
}

.stat-line {
  font-size: 16px;
  color: var(--text-dim);
  margin: 6px 0;
}

.stat-line span {
  color: var(--text);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

/* ------------------------------ Desktop fin ----------------------------- */
@media (min-width: 560px) {
  #app {
    max-width: 560px;
  }
}